(19)

(11)

EP 1 488 654 A1

(12)

(43) Date of publication: 22.12.2004 Bulletin 2004/52 (21) Application number: 02713117.6 (22) Date of filing: 26.03.2002

(51) International Patent Classification (IPC)7: H04Q 7/38, H04L 12/14, H04M 15/00 (86) International application number: PCT/IB2002/000936 (87) International publication number: WO 2003/081936 (02.10.2003 Gazette 2003/40)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (71) Applicant: Nokia Corporation 02150 Espoo (FI)	(72) Inventors: KOSKINEN, Juha-Pekka FIN-13210 Hameenlinna (FI) VALLINEN, Juha, R. FIN-33900 Tampere (FI) (74) Representative: Style, Kelda Camilla Karen et al Page White & Farrer,54 Doughty Street London WC1N 2LS London WC1N 2LS (GB)